Combined stopcock and strainer



A. C. SCHUERMANN.

COMBINED STOPCOCK AND STRAINER. APPLICATION FILED MAYZI, 1918.

1,394,762, I Patented Oct. 25, 1921.

4 SHEETSSHEET I.

{June/Mo's M6. Jckzwrmalnn/ A. C. SC'HUERMANN.

COMBINED STOPCOCK AND STRAINER.

APPLICATION FILED MAY 21. I918.

Patented Oct. 25, 1921.

4 SHEETSSHEET 2.

8440mm v4. 6 Jcmrma/mw wi bmeooeo A. C. SCHUERMANN.

COMBINED STOPCOCK AND STRAINER.

APPLICATION FILED MAYZI. I918.

Patented Oct. 25, 1921 4 SHEETS-SHEET 3- E] m ue "01 4., C. Schue/rnn A. C. SCHUERIVIANN.

COMBINED STOPCOCK AND STRAINER.

APPLICATION FILED MAY 21, I9I8.

Patented Oct. 25, 1921,

4 SHEETS-SHEET 4- UNHTEED) ANTON C. SGHUERMANN, 0F DECATUR, ILLINOIS, ASSIGIVOR TO .ADQLPH CMlIi'EILQlL-ERI,

PATENT @FFEQE.

. TRUSTEE, OF DECATUR, ILLINOIS.

GOMBIN ED STOPCOGK AND STBAINER.

memes.

Specification of Letters Patent.

Patented @ct. 25, 1921.

Application filed May 21, 1918. Serial No. 235,798.

useful Improvements in Combined Stopcocks and Strainers, of which the following is a specification.

This invention relates to improvements in lavatory and like fittings; and has for an object to provide a single device wherein are peculiarly combined a stop cock and a strainer fwhich is compact and relatively small; which has its inlet and outlet ports or openings so arranged as to permit the connection of a supply pipe thereto without interposition of extra fittings, lengths of pipe, or elbows; wherein the stop cock is located insuch position as-to cut off the flow of water .from the strainer to permit the removal and cleansing of the strainer;

and wherein the stop cock and the strainer are so arranged"and located in the device that they may be independently operated and removed without interfering with one another.

It is another object of this inventionto provide a fitting of this nature which is relatively simple in form; which is sanitary; which has but few parts to which access may be readily gained; which presents a relatively compact and narrow structure which may be interposed in a supply pipe without occupying considerable space, which may be introduced into spaces where ordinary stop cocks and strainer casings could not be used, and to which access may be readily had.

The above and other objects and advantage of this invention will be more clearly brought out in the following detail disclosure of the present embodiment of this invention, the same being disclosed in the accompanying drawings wherein Figure 1 is a front elevation of a lavatory member, showing the hot and cold water supply pipes leading thereto, and showing one of the devices of this invention inserted in each of the supply pipes.

Fig. 2 is a side elevation of the improved fitting, in substantially full size.

Fig. 3 is a longitudinal vertical section through the same.

Fig. 4 is a longitudinal section taken on the line 4-4 of Fig. 3. I

Fig. 5 is a transverse section taken on the line 5-5 of Fig. 3.

Fig. 6 is a view in side elevation of a slightly different development of the invention.

Fig. 7 is a vertical section of the form shown in Fig. 6.

Fig. 8 is a sectional view on the line 88 of Fig. 6.

Fig. 9 is a vertical sectional view of a slightly different development of the invention.

Fig. 10 is an enlarged view to illustrate one form of strainer and nut mounting.

Referring to these drawings, wherein like parts are designated by similar characters of reference throughout the several views, 10 designates a lavatory member of conventional form to which lead the supply pipes 11 and to which are fitted devices embodying'the features of this invention.

In that form of the invention shown in Figs. 1 to 4, inclusive, it will be noted that the improved fitting comprises a single casing 12 having an inlet port 13, and an outlet port 14. The inlet and outlet ports in this form are in longitudinal alinement with each other, and are adapted to receive the supply pipe sections 11 and 11 respectively. The

casing 12 is divided interiorly into a lower valve chamber 15 and an upper screen chamber 16, by a diaphragm 17 The diaphragm 17 extends transversely of the casing 12 and terminates in a wall 18 which forms a longitudinal passage 19 in the casing 12. The chambers 15 and 16 open outwardly through the wall of the casing, chamber 15, in the form shown leading to one side of the casing 12, while the chamber 16 leads to the opposite side 'of the casing, the chamber 15 communicating with the inlet 13 and being adapted to receive fluid therethrough from the supply pipe section 11.

The inner end of the chamber 15 communicates with the longitudinal passage 19 through a port in the wall 18, a valve seat 20 being provided to receive a valve 21 carried in the chamber 15. The valve 21 may be of any suitable construction, but preferably as shown, and is mounted upon the end of a stem 22 having' an intermediate threaded portion for engagement with internal threads in the wall of the chamber i 15, whereby upon the turning of the stem 22 pipe section 11.

the valve 21 is movedlongitudinally in the chamber 15.

A nut 23 encircles the stem 22 and engages the open threaded end of the chamber 15. The stem 22 is sealed within the cap 23 in the well known manner, as shown. A handle 24 is mounted upon the outer end of the stem 22 for turning the same, and isdisposed at one side of the casing 12, as shown.

The chamber 16 in the top or upper end of the casing 12 extends preferably in parallelism with the chamber l5, to provide a relatively flat or narrow structure of a width but slightly greater than the diameter of the supply pipe 11, and the chamber 16 opens through the wall 18 into the passage 19 and through an opening in the easing 12.

A nut 25 is threaded into the opening in the side of the casing 12 and is provided with a hollow cylindrical extension 26 as shown in Figs. 3 and 5, which closely fits the opening through the wall 18. The extension 26 supports the open end of a screen pocket 27, the latter being of the desired mesh; closed at its outer end; and extending longitudinallyinto the chamber 16. The extension 26 is provided with one or more openings 28, which establish communication between the passage 19 and the interior of the extension 26. As the open end of the screen 27 is carried upon the end of the extension 26, the fluid from the passage 19 passes into the extension 26 to the screen 27, through the sides of the screen 27, into the chamber 16, and out through the supply pipe section 11.

It is thus seen that the water passing up through the supply pipe 11 passes into the valve chamber 15, and when the valve 21 is open, through the valve seat 20 into the passage 19. From the passage 19 the water flows through the openings 28 into the extension 26 and screen 27, and thence upwardly through the chamber 16 and supply All sediment, dirt, and deleterious matter, which is carried by the fluid passing up through the supply pipe 11, is caught'in the screen pocket 27, and, owing to the fact that the water flows into the screen from one end thereof, and out through the sides of the screen, the foreign substances in the water are held in the screen pocket and retained therein to admit the easy removal of the same.

When it is desired to clean out the screen 27, the valve 21 is closed to shut off the flow of water through the supply pipe 11, the cap nut 25 is now removed, and, as the screen 27 is secured thereto, the screen may be drawn out with the cap nut and be cleansed.

From Figs. 3 and 4 it will be noted particularly that the supply pipe 11, although made in two sections, 11 and 11 extends in shut off the flow of the water to the lavatory member, but it also provides for a screen to filter the fluid and remove the foreign substances from the same before it reaches .the lavatory member and the fittings thereof.

In that form of the invention shown in Figs. 6, 7 and 8, a variation of the operative parts is shown. It will be observed that the same flat, compact arrangement is preserved, but the inlet and outlet are difl'erently disposed and the valve and screen are removable from the same side of the casing.

Referring to the drawings (Fig. 6) it will be seen that the casing 28 is of the same general contour of the casing heretofore described in connection with the form disclosed in the figures already referred to.

In this form, however, it-will be seen that, while preserving the general features of construction, the inlet 29 leads to the casing 28 at a diflerent angle from that heretofore described, and the valve 30 with its operating stem and handle enters the casing from the same side as strainer 31 and its supporting nut. In this form of construction, the easing is divided by the diaphragm 32,'and the water entering the chamber below this diaphragm, passes through the openings in the body of the cap nut 33, through the strainer 31 to the outlet 34.

In the form of the invention shown in Fig. 9 the fixture is-so developed as to bring about a flow into the strainer from the outadjacent the inlet 36 which diverts the flow so as .to enter the port 37 in a manner similar to that shown in Fig. 8, so that the fluid enters the valve chamber and passes from said chamber through an opening 38 in a transverse wall, which separates the valve chamber from the strainer chamber, and causes the fluid entering the strainer chamher to pass from the outside through the walls of the strainer 39, and thence issuing from the open end of the strainer passes by way of ports 40 in nut 41 to the outlet passage 42.

In the construction shown in Fig. 9 and illustrated in detail in Fig. 10, a slightly different strainer mounting isshown. In this form the strainer and nut are separate as distinguished from the combined strainer and nut shown in the other views, the strainer 39 having the supporting ring 43 which seats in the opening in the vertical wall 44 and holds the strainer in proper position in the strainer chamber. The nut. 41 will be of the construction heretofore described, except that its ported end instead of engaging the strainer will simply abut, when secured into place, the ring 43 so as to'maintain a close joint and hold the strainer in proper position. By this construction, the nut alone may be removed for inspection or cleaning of the parts withoutwithdrawing the strainer, although the strainer may be readily removed for repair or replace--- ment, if desired.

In the construction described, it will be observed that the flow through the fitting is illustrated and described as being usually from the valve chamber to the strainer chamber, but it will be understood that the fitting may, if desired, be so utilized as to reverse the flow and have such flow first into and through the strainer chamber and strainer and thence to the valve chamber and an outlet on the valve chamber side.

It will be observed that in this form as in the other form of the invention, the same relatively flat, compact construction. is preserved, so as to maintain always a neat readily installed and accessible device.

Although the necessity and desirability of shutting off the water from the lavatory fittings, and the straining of. the. water before it passes to the lavatory fittings has been long recognized, still the separate and independent valves and screens so far known are not adapted to this use and application as the separate fittings are necessarily cumbersome, expensive, and are difiicult to install, hard to gain access to when installed, and in many cases cannot be introduced into the limited spaces in which it is necessary to place the supply pipes.

With the present invention, however, it is designed to overcome the difliculties and obstacles heretofore encountered in all prior devices, and to combine in a single unitary device of compact form the stop cock and screen; and to so peculiarly formthe parts thereof as to admit not only of the arrangement of the valve and the screen in a single casing, but to also admit of the operation or removal of the valve, and the removal of the screen without interfering with theadjustment of each other. i

It will be observed that by arranging the valve and strainer chambers as shown, so that the valve mechanism and the strainer parts are not longitudinally alined', although lying in the same plane-lapped upon each other, a much more compact device is provided while'retaining a maximum straining area. If the same area of strainer and the same valve mechanism of the quick pression 5 type were alined, the dimensions of the casing would have to be very considerably increased, in fact, substantially doubled in order to accommodate such an arrangement.

The accompanying drawings show the device of this invention arranged vertically, but it is to be understood that this device may be disposed horizontally, or at any desired; angle, and in any pipe where a stop cock and strainer are required.

It is, of course, understood that various I changes may be made in the details of the construction of this device without departing from the spirit of invention.

I claim:

-1. A fitting of the class described, comprising a casing having inlet and outlet ports, a diaphragm dividing said easing ling flow through one of said chambers, a a

strainer on one side of said diaphragm, and a hollow ported member on the other side of said diaphragm supporting said strainer and removable with such supported strainer fromthe casing.

3. A fitting of the class described, com- V prising a casing having inlet and outlet ports, a diaphragm dividing said casing into inlet and outlet chambers, a valve controlling flow through one of said chambers, a strainer on one side ofsaid diaphragm, and

a hollow ported member on the other side of said diaphragm to support and permit flow through said strainer, said hollow ported member and its supported strainer being removably mounted in said casing.

4:. A fitting of the class described, comprising a casing having inlet and outlet ports, a diaphragm dividing said casin into inlet and outletchambers, a valve controlling fiow through one of said chambers, a strainer on one side of said diaphragm and removable therethrough, and a hollow ported member removably mounted in the outer. wall of said casing on the other side of said diaphragm to removably support said strainer in said casing and permitted to be removed with said ported member.

5. A fitting of the class described, comprising a relatively fiat casing having transversely disposed chambers in its upper and lower ends, one of which chambers has an inlet and the other of which chambers has an outlet; a valve extending into one chamber through a narrow side wall of the casing for controlling the flow of fluid; and a strainer removably mounted in the narrow side wall of the casing through which fluid is adapted to pass from the valve chamber.

6. A fitting of the class described, comprising a relatively fiat casing having two transversely disposed chambers and a passage near one edge of said casing connecting said chambers; an inlet port communicating with one 01 said chambers; an outlet port communicating with the other of said chambers; a strainer removably mounted in the narrow side of said casing and extending into one of said chambers; and a valve mechanism removably mounted in the narrow side of said casing and extending into the other chamber for controlling the flow through said casing.

7. Afitting of the class described, comprising a. relatively flat casing having an inlet and an outlet connection in the bottom and top, respectively, thereof for installation in a pipe line, a partition arranged transversely of said casing and dividing it into two chambers, one of which connects with the inlet and the other of which connects with the outlet, a third chamber lying transversely of and connecting said first named chambers, a valve extending into one of said first named chambers and controlling fiow therethrough, a strainer extending into the other of said chambers, said valve and strainer being out of line with each other longitudinally, but disposed in the same plane, detachable retaining means for said strainer, and detachable retaining means for said valve.

8. A fitting of the class described, comprising a relatively flat -casing having a diaphragm dividing the easing into upper and lower chambers and a connecting end chamber; a valve mechanism in the lower chamber projecting through one edge of the casing into one of said chambers to control flow through said end chamber; and a strainer removably mounted in the edge of the casing and extending into the other of said chambers to receive fiow from said end chamber.

9. A fitting of the class described, comprising a chamber having inlet and outlet ports, a partition dividing said casing into inlet and outlet chambers, a third chamber at one end of said casing connecting said inlet and outlet chambers, a valve in said inlet chamber, and a strainer in said outlet chamber out of line longitudinally with said valve but lying in the same plane therewith.

10. A fitting of the class described, comprising a casing having inlet and outlet ports; a wall dividing said casing into inlet and outlet chambers; an open passage at the end of said casing connecting said chambers; a valve in the inlet chamber controlling flow therethrough; a strainer in the outlet chamber; and a removable member engaging said strainer and having a fluid passage therethrough.

In testimony whereof I have hereunto set my hand.

ANTON o. SOHUERMANN. 

